The make-up water treatment using lime is adopted for circulating water in one thermal power plant

the technological system and process of slow speed decarbonization have been briefly presented.Direting against the problems occurred in operation of said system

such as the output capacity doesn't reach the designed value

and the chlorine radicals exeeding set standard

the dosage of chemicals has been optimized through tests

the output capacity of the system is finally being made to reach the designed value 2500 m3/h

after dosing concentrated sulfer acid

the pH value being 8.0~8.3

the alkalinity of effluent water0.65 mmol/L

the turbidity2.0NTU

the chlorine radicals132 mg/L

tallying with the designed requirements of make-up water treatment using lime for the circulating water.At the same time

the requirement of enhancing the concentration cycles of circulating water in the power plant to 6 has reached.